Original commit message from CVS:
Added seeking to some of the plugins.
some MMX speedups in the MPEG decoders.
Better YUV to MMX conversion
implemented seeking to gstplay.
Original commit message from CVS:
Switched Cr and Cb in YUV2RGB
fixed the avi parser (gstriff had wrong size)
the system_encoder can now do video only system streams
sanitized the colorspace and scaler api.
added fast self modifying asm scaler.
worked on the typefind stuff.
added a cool media player (gstplay) it uses the typefinder to playback
avi, mpeg1 (system and video) streams. It is also a testbed and a real app.
